[LV1][LV2][LV3] (Every Attack Step) When your Bunshin Spirit battles, by putting that Spirit on top of one of your Bunshin Spirits in refreshed condition, during that battle, that Bunshin Spirit becomes "Cost 6, 20000 BP, " and is treated as one Bunshin Spirit. When that Spirit leaves the Field, or at the end of the battle, the Bunshin Spirit on top is separated in exhausted condition.

[LV2][LV3] (When Battles) When the number of Bunshin Spirits you control is two or less, you can activate all of your Spirits' "Bunshin" effects.